The MAM Microwave Steam Steriliser is super fast and easy to use. Simply pour in some water, load in the microwave and it sterilises in only 5 minutes. The exact length of cycle will depend on the wattage of the microwave: 5 minutes at 1100W-2500W, 6 minutes at 850W-1000W, 8 minutes at 500W-800W. It is perfect for travel and can also be used as a cold water steriliser. It has a large capacity with 2 levels. It will hold 6 x MAM Anti-Colic 160ml bottles or 4 x MAM Anti-Colic 260ml bottle or 5 x MAM 270ml Baby bottles or 6 x MAM 330ml Baby bottles.